NEC Requirements for Solar Photovoltaic Systems (textbook), 2017 NEC

Hi Mike,

I'm Andy from Rep. of Panama, studying to be NABCEP PV designer installer certified. One of the most important tools is your "Understanding NEC Requirements for Solar PV Systems", by the way - very simple and specific. Drawings give you a clear understanding. Congratulations, knowledge expands when you share it, thank you.

Regards, Andy


Mike and Team, you are the best! I just passed the NABCEP Certified PV Installer exam and I couldn’t have done it without you. While I am strong in solar, the NEC was pretty mysterious. When I finished  your book on Understanding NEC Requirements for Solar PV and got 90’s on both final practice exams, I knew I was ready and had the knowledge and confidence to pass. Thank you and bless you all for the outstanding work. You can bet I will be getting the updated version for the 2014 code cycle. My best to all and again THANK YOU!

Vincent J. (Vinny) Colletti, NABCEP Certified Professional PV Installer


Mike has become, or should I say, I have just seen, that he is the standard that both contractors and inspectors view as industry standard for learning, teaching and working in this ever changing solar industry

James E Callison


I find the training materials and the recent book on the 2014 NEC Photovoltaic System Requirements are excellent. I consult in my design work - great reference material!

Michael Flahie, P.E.


For electricians nationwide, the name Mike Holt has long been synonymous with top-notch, Code-focused electrical training and publishing. Both he and this new book are exceptional resources upon which the solar technology workforce can now rely to improve the code compliance, safety and performance of PV systems.

Bill Brooks, Principal Brooks Engineering


Your Solar Photovoltaic Systems textbook is very informative and helpful to many on our team of varied skill sets and experience levels in our industry. Thank you.

Scarlett Eastman